Kérastase Ciment Anti-Usure is a repairing, anti-breakage conditioner specifically for weakened, damaged hair that is prone to splitting and breaking. Key Ingredients: Pro-Keratin - A strengthening protein to mimic natural keratin for stronger, healthier hair Ceramide - To strengthen hair fibre from the inside out Developed with Vita-Ciment®, the strengthening conditioner reinforces each hair fibre from the inside out for healthier, smooth result that's full of shine! Erosion Levels: 1-2